We'vecovered a lot of material in this book.
If you already knew parallel programming well from another systems programming language, I hope that now you've got a confident handle on the way Rust operates. Its ownership model is strict, and can feel foreign at first. Unsafe Rust, if my own experiences are any kind of general guide, feels like more familiar ground. I hope that you too have come to appreciate the general safety of Rust, as well as its ability to do fiddly things in memory when needed. I find being able to implement unsafe code that is then wrapped up in a safe interface nothing short of incredible.
If you knew parallel programming fairly well from a high-level, garbage-collected programming language, then I hope that this book has served as an introduction to parallel programming at a systems level. As you know, memory safety does not guarantee correct operation, hence this book's continual focus on testing—generative and fuzz, in addition...